OFPEC is basically just a website maintained by volunteers. The site is hosted by a commercial ISP which obviously isn't free. Nevertheless we don't charge for membership, nor do we host paying adverts on our site. Instead we rely on the generosity of the Community to help keep the site going.
We have a PayPal acount set up to accept donations, and we also have an arrangement with Idea Games whereby if you buy any of the Armed Assault titles through OFPEC we receive a small percentage which goes towards the hosting bill.